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. 2013 Jan 22;8(1):e54334. doi: 10.1371/journal.pone.0054334

Table 1. Virus strains generated by reverse genetics and the amino acids comparison of NAa.

Virus NA Gene Length Homologya (%) Enzyme acitivity
rPR8-H5N1NA H5N1 469 71.4 1∶10
rPR8-H9N2NA H9N2 466 30.9 1∶10
rPR8-H1N1NA Swine-H1N1 449 61.5 <1∶10
PR8-wt PR8 454 1∶10
a

The amino acids homology of wild-type PR8 virus and those of the H5N1, H9N2 or swine-H1N1.